Buggy code:
public abstract class AbstractDistributionTest extends ContainerAbstractTestCase implements IDistributionConstants { protected IRemoteServiceContainerAdapter [ ] adapters = null ; protected abstract String getClientContainerName ( ) { } protected void startTest ( String testname ) { } protected void endTest ( String testname ) { } protected void tearDown ( ) throws Exception { } protected void setClientCount ( int count ) { } protected void setupRemoteServiceAdapters ( ) throws Exception { } protected BundleContext getContext ( ) { } protected IRemoteServiceContainerAdapter [ ] getRemoteServiceAdapters ( ) { } protected IRemoteServiceListener createRemoteServiceListener ( final boolean server ) { } protected void addRemoteServiceListeners ( ) { } protected IRemoteServiceRegistration registerRemoteService ( IRemoteServiceContainerAdapter adapter , String serviceInterface , Object service , Dictionary serviceProperties , int sleepTime ) { } protected IRemoteServiceReference [ ] getRemoteServiceReferences ( IRemoteServiceContainerAdapter adapter , String clazz , String filter ) { } protected IRemoteService getRemoteService ( IRemoteServiceContainerAdapter adapter , String clazz , String filter ) { } protected String getFilterFromServiceProperties ( Dictionary serviceProperties ) { } protected String [ ] getDefaultServiceClasses ( ) { } protected Object getDefaultService ( ) { } protected ServiceRegistration registerService ( String [ ] clazzes , Object service , Properties props ) throws Exception { } protected ServiceRegistration registerService ( String clazz , Object service , Properties props ) throws Exception { } protected ServiceRegistration registerDefaultService ( Properties props ) throws Exception { } public ServiceReference getReference ( ) { } protected void assertReferenceHasCorrectType ( ServiceReference sr , String classname ) { } protected void assertReferencesValidAndFirstHasCorrectType ( ServiceReference [ ] references , String classname ) { } protected void assertReferencesValid ( ServiceReference [ ] references ) { } protected void assertStringResultValid ( Object result , String compare ) { } protected void assertProxyValid ( Object proxy ) { } protected ServiceTracker createProxyServiceTracker ( String clazz ) throws InvalidSyntaxException { ServiceTracker st = new ServiceTracker ( getContext ( ) , getContext ( ) . createFilter ( ( ( ( ( ( ( "(&(" + ( Constants . OBJECTCLASS ) ) + "=" ) + clazz ) + ")(" ) + ( SERVICE_IMPORTED ) ) + "=*))" ) ) , new ServiceTrackerCustomizer ( ) { public Object addingService ( ServiceReference reference ) { Trace . trace ( PLUGIN_ID , ( "addingService=" + reference ) ) ; return getContext ( ) . getService ( reference ) ; } public void modifiedService ( ServiceReference reference , Object service ) { Trace . trace ( PLUGIN_ID , ( "modifiedService=" + reference ) ) ; } public void removedService ( ServiceReference reference , Object service ) { Trace . trace ( PLUGIN_ID , ( ( ( "removedService=" + reference ) + ",svc=" ) + service ) ) ; } } ) ; <START_BUG> st . open ( true ) ; <END_BUG> return st ; } protected IRemoteService getRemoteServiceFromProxy ( Object proxy ) { } }

Fix:
st . open ( ) ;